Donna, who split from the 61-year-old Richard in 2005, also says that her fat-cat ex owes her half of $10 million he’s made from seats he owns on the Mercantile Exchange, the New York Board of Trade and the Commerce Exchange.

She accuses her former spouse of “actively concealing” the profits.

The Lower Manhattan resident also never forked over a share of his $580,000 retirement fund to her, Donna claims in her Manhattan Supreme Court suit.

But Richard told The Post his former spouse is the greedy one.

“I’m wildly shocked,” Richard Schaeffer said Monday when he learned of the lawsuit.

He said he never cut off payments to Rachel and has always been generous to his ex-wife.